I've been working on breading for mostly fish and have been experimenting with brown rice flour instead of wheat. Last week I was in S. Mo and had the best catfish I can remember. The breading had to be rice flour.
Near perfect. So I'm back to 1 cup brown rice flour, 1 cup beer, 1 egg. But I might try just egg whites.
The brown rice flour browns up faster so it's harder to tell when done.
Oh ya, peanut oil.
I should mention I've tried both boxed breading, and scratch but I'm looking for that perfect one.